Soil Science Internet Subject Directories/Portals/ Gateways
- A Compendium of On-Line Soil Survey Information (Rossiter)
- Dr. Soil Surfs
- Forest and Range Soils (Soil Science Society of American S-7)
- Links of Interest (Soil Science Society of America)
- NSCSS Soil Science Links (National Society of Consulting Soil Scientists)
- Soil and Water Web (Thomas)
- Soil Wide Web (Associazione Italiana Pedologi)
- Soils Online(HintzeOnline)
- The World Wide Soil Jumpstation (Fred Moore)
- World Wide Web Virtual Library: Soils and Substrates (Finnish Forest Research Institute)